The next step of my examination is the number font used in the serial number in the auction item note. See below ( A/12 888888 ) . You can see that the number font used is Arial.

After going through some of the existing and available scan of similar Malaya $50 banknote, I found that the serial number font used is Roman Times. You can see the differences on digit 8 See below.

Here are some more samples taken from ebay and Ron Wise website that I have examined.



Other examples with different prefix. There are also possibilities that at different prefixes, they may use different number font. I did an examination on different available prefixes. The last one is a A/14. Still the final answer is they all uses Roman Times font and not Arial font. I also discovered that only the larger denomination such as the Malaya 1953 QEII $50 and $100 uses Roman Times font. ( From my collection ).


Only the $1, $5, $10 uses Arial font. All these samples are taken from my collection.



Another notable observation is that the reproduction notes uses Arial font for all the available denomination up to $10,000. This is a good indication of mismatch of font used as in the original $50 and $100.
I think it is a bit confusing. To make it simple, all reproduction notes for all denominations have Arial font serial number.
Original notes with $1, $5 and $10 denomination have Arial font serial number while original $50 and $100 notes have Roman Times font serial number.